Row r5 = sheet1.getRow(4);
Comment cc5 = r5.getCell(2).getCellComment();
cc5.setAuthor("Apache POI");
cc5.setString(new XSSFRichTextString("Hello!"));
Row r2s2 = sheet2.createRow(2);
Cell c1r2s2 = r2s2.createCell(1);
assertNull(c1r2s2.getCellComment());
Comment cc2 = sheet2.createComment();
cc2.setAuthor("Also POI");